Narrow-ware loom.



APPLIO Patented Nov. 17, 1908.

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. shuttles.

OTTO W. SGHAUM, OF PHILADELPHIA, PENNSYLVANIA.

NARROW-WARE LOOM.

Specification of Letters Patent.

Patented Nov. 17', 1908.

Application filed December 21, 1907. Serial No. 407,573.

To all whom it may concern:

Be it known that I, O'r'ro lV. SCI-IAUM, a citizen of the United States, residing in Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented an Improvement in Narrow lVare Looms, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

The invention to be hereinafter described relates to narrow ware looms and more particularly to the driving means and its connections for giving to the small shuttles their required motion.

As well understood by those skilled in the art, the rack bar which engages rack teeth on the shuttles in narrow ware looms is reciprocated lengthwise of the lay by appropriate driving means. The driving means has usually consisted of a pair of straps one end of which has been connected to the sliding rack bar near one end of the lay, then passed around appropriate guide pulleys and joined to the actuating means. In this construction the rack bar has been pulled first in one direction, then pushed in the 0pposite direction, with the result that when pushed from one end the light rack bar would buckle or spring due to the strain required to move it against the resistance of the shuttles. This is especially noticeable in the wide looms of this character now in use, or where there exist a plurality of banks of On the other hand, it is essential. that the actuating means for the sliding rack bar be at the loom side -to readily permit of the necessary adjustment and be accessible at all times. It is also desirable that the rack bar actuating means and its connections be so constructed and arranged as to permit their use and ready application to, what is known in the art as, right or left hand battens.

VVith these considerations in view, the object of the present invention is to provide a narrow ware loom with a rack bar reciprocating means operated from an actuator at the loom side, said means acting to pull the rack bar first in one and then in the other direction; and to so dispose and arrange the parts that the said means may readily be employed in connection with a right or left hand batten.

Other objects also will hereinafter appear as the invention is described in connection with one form or embodiment thereof.

In the drawings: Figure 1 is a top or plan view of the batten of a narrow ware loom showing the rack-bar and strap connections, the batten being broken away at the center, and the shuttles being omitted for clearness. Fig. 2 is a sectional side elevation of so much of a narrow ware loom as required to clearly disclose the invention applied thereto. Fig. 3 is a cross section on the line m.r, Fig. 2.

In the drawings, A represents a part of the loom frame to which the batten or lay beam B is connected by means of the swords 1, pivoted to the frame A at Q. Mounted upon the top portion of the lay beam or batten B is the sliding rack-bar 3, the teeth of which are adapted to engage the rack teeth of the narrow ware shuttles to thereby aetnate them in their passage through the sheds, as well understood by those skilled in the art.

Adjustably mounted in a recess at each end of the lay beam or batten B is a roller L, the adjustability of these rollers l, l, to-

wards and from each other being secured by means of the axial pins 5 movable back and 'forth in slots 6 of the lay beam or batten,

and held in position by means of the nuts 7 which may be set up against the plates 8.

Disposed at the side of the loom frame is the rack-bar actuating means which may be of any usual or desired construction, such, for instance, as in my prior patent No. 460,662, Oct. 6, 189l, or as shown may comprise the rolls 9, i), eccentrically mounted upon a shaft 10 connected to a moving part of the loom for back and forth rotary movement, as usual, and as well understood by those familiar with narrow-ware loom constrnctions. Connected with each of the rolls 9. 9, is a flexible band 11. 11, one of which passes directly around the roll 4: at the same side of the 100111 and is secured to the adjacent end of the rack bar 3, and the other of which passes about a guide pulley 12 secured to lay beam or batten on that side adjacent the rack bar actuating means, and from thence it passes lengthwise of the lay beam or bat-ten about the roller 4 at the opposite end and is secured to the adjacent end of the rack bar From the construction thus far described, it will be noted that as the rack-bar actuating means 9, 9, is operated first in one and then in the opposite direction, it will impart to the rackba r 3, through the flexible straps 11, 11", a pull to move the rack-bar in one direction, and then a pull to move it in the opposite direction, thereby avoiding any spring or buckling of the rack-bar. It will also be noted that this movement of the rack-bar is secured from an actuating means disposed at one side of the loom, so that i while securing the pulling strain in each direction for movement of the rack-bar, the actuating means is readily accessible at all times.

The guide roll 12 is secured to the lay beam or batten by detachable connections, such, for instance, as screws 13 or other convenient devices, so that the device can be used on either a right or left hand batten, by simply changing the guide pulley 12 to one or the other end of the lay beam or batten, as will be readily understood by those skilled in the art. For instance, the lay beam or batten being similar in construc tion and arrangement of parts at either end, if the rack-bar is to be applied to a loom wherein the actuating means is at the opposite side of the loom to that shown, it is only necessary to detach the guide pulley 12 from the position shown to the opposite end, and shift the lead and connections of the flexible bands 11, 11.

It will be noted that each end of the lay beam or batten B has an L-shaped recess 14 formed therein, the upper portion of which terminates in a stop or wall 15, and that the ends of the rack bar have side projections 16, 16 to which the flexible connections 11, 1.1, are respectively secured, said projections, and consequently the rack-bar, being limited in their reciprocating movements lengthwise of the lay beam or batten, the said projec tions riding on the ledge 17, Fig. 3, effectively preventing any tipping movement of the rack-bar as it is reciprocated.

As well understood by those skilled in the art, the rack-bar engages rack teeth on a number of small shuttles disposed to move in short circular or curved paths through the several sheds formed in the usual manner. In order that these small shuttles shall move in the required path it is necessary for the rack-bar to be adjusted so that byits reciprocation in either direction it will not only cause the shuttles to pass through their sheds but so define the beginning and end of each reciprocation that the shuttles will be entirely clear of their sheds prior to their picking movement and be carried clear of the shed at the end of the picking movement. Such characteristic action is readily accomplished by a simple adjustment of one or both of the rolls 4 which serve to alter or adjust the path of movement of the rackbar and, consequently, that of the shuttles.

Z1 Such adjustment of the rack-bar is also advantageous in adapting looms, already equipped with the old form of rack-bar and actuating means, with the present device, as will be readily understood;

Having thus described one embodiment of the invention what I claim and desire to secure by Letters Patent is 1. In a narrow-ware loom, the combination of a lay beam or batten having similar recesses 14 at each end thereof and stops 15,

a rack-bar extending lengthwise thereon to be reciprocated back and forth and having projections 16, actuating means for said rack-bar disposed at one side of the loom, and flexible connections joining said actuating means at the side of the loom with the rack-bar, one of said connections being attached to one end of the rack-bar to pull it in one direction and the other flexible connection being attached to the other end of the rack-bar to pull it in the opposite direction.

2. In a narrow-ware loom, the combination of a lay beam or batten, rolls adj ustably mounted thereon at opposite ends thereof to provide for changing the reciprocating path of the rackbar, a rack-bar extending lengthwise thereon, actuating means for said rack bar disposed at one side of the loom, flexible connections joining the said actuating means at the side of the loom with said rack-bar, one of said connections being attached to one end of the rack-bar to pull it in one direction and the other flexible connection being attached to the opposite end of the rack-bar to pull it in the opposite direction.

8. In a narrow ware .loom, the combination of a lay beam or batten, a rack-bar mounted thereon to be reciprocated back and forth, rolls mounted on said lay beam or batten at opposite ends thereof, means for relatively adjusting the said rolls longitudinally of the beam or batten to change the path of reciprocation of the rack-bar, actuating means for said rack-bar disposed at one side of the loom, a guide pulley mounted on the lay beam or batten at the side thereof adjacent the rack-bar actuating means, a flexible connection joining the actuating means at one side of the loom with the adjacent end of the rackbar to pull it in one direction, and a flexible connection joining the actuating means at one side of the loom with the other end of the rack-bar at the opposite side of the loom to pull it in the opposite direction, said last named flexible connection passing over the guide pulley at the side of the loom adjacent the actuating means.

4. In a narrow-ware loom, the combination of a lay beam or batten having the re cesses 14, 14, at the opposite ends thereof, and stops 15, 15, a rack-bar having a projection 16 at each end thereof, rolls 4, 4, mounted in said recesses of the lay beam or batten, actuating means for said rack-bar disposed at one side of the 100111, a guide pulley 12 mounted on the lay beam or batten at the side thereof adjacent the rack-bar actuating means, a flexible connection joining the actuating means at one side of the 100111 with the adjacent end of the rack-bar to pull it in one direction, and a flexible connection joining the actuating means at one side of the 100111 with the end of the rack-bar at the 0pposite side of the loom to pull it in the opposite direction, said last named flexible connection passing over the guide pulley at the side of the loom adjacent the actuating 111621113.

In testimony whereof, I have signed my 15 name to this specification, in the presence of two subscribing witnesses.

OTTO \V. SCI-IAUM.

Vitnesses L. M. LEN'lZ, B. G. ELLIOTT. 

